Jack Black Sings His Rockin’ Version of ‘Carol of the Bells,’ on Video

Jack Black‘s fully in the holiday spirit … rattling off a Christmas carol for us in his typical hard-rocking voice in New York City!

We caught up with the actor and singer outside “The Drew Barrymore Show” Tuesday … and we asked him what his least favorite holiday tradition is.

Either Jack didn’t hear us, or he chose to stay positive and give us one of his favorites instead … because he launches into the song with his usual enthusiasm and projection.

Listen to the song for yourself … JB doesn’t know all the words, but that doesn’t stop him from barreling right on through — before telling us he just loves that track.

Black then heads for the waiting black SUV on the New York City street … posing like a model with a final look over his shoulder before hopping in the car.

Fans can celebrate Christmas Day with Jack Black, BTW … or, at least they can see him on the big screen — because his comedy “Anaconda” costarring Paul Rudd, is due out on the 25th.